The event, which features prelims on Showtime Extreme, takes place Jan. 12 at Chesapeake Energy Arena in Oklahoma City.

It’s expected to be Strikeforce’s final event.

Barnett, 35, makes his return after a unanimous-decision setback to Daniel Cormier in the finals of the Strikeforce heavyweight grand prix, which took place in May.

The ex-UFC champ broke his hand in the first round of the five-round fight and was benched for several months as he recovered. Prior to meeting Cormier, he hadn’t lost in six years over eight bouts.

Guelmino, 36, recently extended his current win streak to seven with a decision victory over Emil Zahariev at a fight card in Slovenia. The Austrian fighter has earned six of his 11 career wins by submission and three by knockout. Notably, he suffered a first-round TKO loss to ProElite vet Andreas Kraniotakes in 2009.

A total of 26 fighters got their chance to shine on Saturday as part of UFC 190 at Rio de Janeiro’s HSBC Arena. Now that UFC 190 is in the books, it’s time to commence MMAjunkie’s “Three Stars” ceremony.

The man known for cranking submissions to the point of injury added eye-gouging to his repertoire. But is the controversy of Rousimar Palhares too essential to his bizarre, awful appeal for his employers to take any meaningful action against him?